Marcus Carlyle Clarke (9 June 1912 – 20 November 2000) was an Australian medical doctor who at the age of 23 was appointed District Surgeon, North Borneo, based at Kudat after answering an advertisement in the Medical Journal of Australia in 1938. After an eventful year in Kudat he was transferred to Sandakan as Port Health Officer, then to Keningau as District Surgeon, Beaufort and the Interior. This is one of the very few accounts of life under the Japanese in Brunei.